/**
 * Created by minigci.he on 16/9/21.
 */
console.log('-----------------------------')
console.log('test19')



var element = document.querySelector('div');

var wm = new WeakMap();
wm.set(element, 'Original');
console.log(wm.get(element));
element.parentNode.removeChild(element)
element = null;
console.log(wm.get(element));

